Samuel b



(No Model.)

S. E. THOMAS.

WASTE TRAP.

No. 286,746. Patented Oct. 16, 1883.

N PEIERS mm umo mw, vlmm xm. o c.

UNITED STATES SAMUEL E. THOMAS, 0E

PATENT OFFICE.

BROOKLYN, NEW YORK.

WASTEj-T RA P.

SPECIFICATION forming part of Letters Patent No. 286,746,. dated-October 16, 188 3.

Applicatioufiled February 12, 1883. (No model.) 1

To aZZ whom it may concern:

Be it'known that I, SAMUEL E. THOMAS, of Brooklyn, in the county ofKings and State of New York, have invented a certain new and usefulImprovement in Taste-Traps; and the following is declared to be a fulland exact descriptionof the same.

In the manufacture of cast lead traps for plumbers use great care has tobe exercised to make the traps of a desirable and efficient form, andalso in such a manner that the cores can be easily removed aftercasting, and it is desirable to have no scam in the lower part of thetrap where the waste water remains, as the rough or projecting edges ofthis scam are liable to catch and retain particles that eventually willinterfere with the proper washing of the trap; and this scam is alsoliable to open or separate from expansion and contraction produced byheat and cold, and become leaky.

My invention has for its object the making of a cheap, efficient, andreliable waste-trap, wherein the seam is in the upper portion, where thewater does not come into contact with it, and the cup portion is of suchshape that the cores can be easily and quickly removed after casting.

In my improved trap I make the lower portion, the central partition, andthe exit-pipe in one casting, the upper portion being in anothercasting.

The central partition of the trap is the main feature of my invention.The cup portion of this trap is cast with a cross-partition, the upperportion of which is free from the side walls, and the partition extendsabove the top of the cup, and-the end is rounded. After the partition iscast in this manner I bend the upper or free end of the partition overin a curved form until its edges touch the walls of the trap, and Isolder the edges and unite them firmly with the cup and form what iscalled the dam.

In. the drawings, Figure 1 is a vertical section of a trap complete.Fig. 2 is a vertical section of the cup portion of the trap as cast withthe vertical partition. Fig. 3 is an elevation of the same at rightangles to Fig. 2. Fig. 4 is a plan of the cup, and Fig. 5 is a verticalsection of a running trap containing my V improvement.

The trap is constructed .of the upperportion, a, and bottom or cupportion, 1). The upper portion, a, has the inlet-pipe a, and the bottomportion is constructed with the exitpipe d and cleaning-plug e, asusual. Sometimes the inlet-pipe a is at the opposite side of the cup I)to the pipe (I, as seen in Fig. 5. The central partition, f, is of theform shown in Figs. 2, 3, and 4, the lower portion from 1 to 2 beingpreferably cast solid with the walls of the trap, while-the upperportion, 3 4, is separated and free from the side walls and ellipticalin the shape of its edges, so that this portion of the partition may bebent down into the cup I), and its edges will set closely against theinner surface of the cup b, as seen in Figs. 1 and 5, and after being sobent the parts are soldered together to form a perfect dam to excludesewer-gas. This soldering is done with a soldering-iron or blow-pipeflame. The parts a and b are-also soldered together at the seam 0 whenthe two parts of the trap are put together.

Fig. 5 shows a running-trap with my improved partition, as beforedescribed, bent over and sealed to form the dam of the trap. In thistrap the inlet-pipe a and exit-pipe d are at opposite sides of the cuppart b.

Traps constructed in this way can be made with facility, because the cupI), pipe d, and

partition f can all be cast in one piece in a metallic mold, the corescan be drawn out, and there is little risk of any defect in the dam. Iprefer to cast. the dam f with the cup b, as described; but it may be aseparate piece soldered in. The trap-screws e are of ordinary character,and are at the bottom, as in Figs. 1, 2, 3, or at the top, as in Fig. 5.

I am aware that a trap with a grating at the uppeinend has been providedwith a dam that is at an inclination to the body of such trap, andcovers the lateral opening to the sewer, as in English Patent No. 1,504.of 1858. This, however, is not adapted to be placed in a line of pipe,and it could not be cast in lead in metal molds, as in my trap.

I claim as my invention 1. In a waste-trap adapted to be inserte in aline of pipe, the combination, with the inlet-pipe a and exit-pipe (Z,of the cup b and the partitionf, the upper end of which is inclinedtoward the exit-pipe d, and united to the interior of the cup b abovesaid pipe substantially as set forth.

2. The cup portion 1) for a waste-trap, and the partition f, easttogether in lead or similar meta], the upper part of such partitionabove 2 being separate from the cup and of an elliptieal shape, andadapted to be bent over against the interior of the cup and soldered tothe same, substantially as set forth.

SAMUEL E. THOMAS.

\Vitnesses:

GEO. T. PINCKNEY,

HAROLD SERRELL.

